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<a name="gst-plugins-good-plugins-v4l2sink"></a><div class="titlepage"></div>
<div class="refnamediv"><table width="100%"><tr>
<td valign="top">
<h2><span class="refentrytitle"><a name="gst-plugins-good-plugins-v4l2sink.top_of_page"></a>v4l2sink</span></h2>
<p>v4l2sink</p>
</td>
<td class="gallery_image" valign="top" align="right"></td>
</tr></table></div>
<div class="refsect1">
<a name="gst-plugins-good-plugins-v4l2sink.properties"></a><h2>Properties</h2>
<div class="informaltable"><table class="informaltable" border="0">
<colgroup>
<col width="150px" class="properties_type">
<col width="300px" class="properties_name">
<col width="200px" class="properties_flags">
</colgroup>
<tbody>
<tr>
<td class="property_type">
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *</td>
<td class="property_name"><a class="link" href="gst-plugins-good-plugins-v4l2sink.html#GstV4l2Sink--device" title="The “device” property">device</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></td>
<td class="property_name"><a class="link" href="gst-plugins-good-plugins-v4l2sink.html#GstV4l2Sink--device-fd" title="The “device-fd” property">device-fd</a></td>
<td class="property_flags">Read</td>
</tr>
<tr>
<td class="property_type">
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *</td>
<td class="property_name"><a class="link" href="gst-plugins-good-plugins-v4l2sink.html#GstV4l2Sink--device-name" title="The “device-name” property">device-name</a></td>
<td class="property_flags">Read</td>
</tr>
<tr>
<td class="property_type"><span class="type">GstV4l2DeviceTypeFlags</span></td>
<td class="property_name"><a class="link" href="gst-plugins-good-plugins-v4l2sink.html#GstV4l2Sink--flags" title="The “flags” property">flags</a></td>
<td class="property_flags">Read</td>
</tr>
<tr>
<td class="property_type"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a></td>
<td class="property_name"><a class="link" href="gst-plugins-good-plugins-v4l2sink.html#GstV4l2Sink--overlay-height" title="The “overlay-height” property">overlay-height</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></td>
<td class="property_name"><a class="link" href="gst-plugins-good-plugins-v4l2sink.html#GstV4l2Sink--overlay-left" title="The “overlay-left” property">overlay-left</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></td>
<td class="property_name"><a class="link" href="gst-plugins-good-plugins-v4l2sink.html#GstV4l2Sink--overlay-top" title="The “overlay-top” property">overlay-top</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a></td>
<td class="property_name"><a class="link" href="gst-plugins-good-plugins-v4l2sink.html#GstV4l2Sink--overlay-width" title="The “overlay-width” property">overlay-width</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></td>
<td class="property_name"><a class="link" href="gst-plugins-good-plugins-v4l2sink.html#GstV4l2Sink--brightness" title="The “brightness” property">brightness</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></td>
<td class="property_name"><a class="link" href="gst-plugins-good-plugins-v4l2sink.html#GstV4l2Sink--contrast" title="The “contrast” property">contrast</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></td>
<td class="property_name"><a class="link" href="gst-plugins-good-plugins-v4l2sink.html#GstV4l2Sink--hue" title="The “hue” property">hue</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></td>
<td class="property_name"><a class="link" href="gst-plugins-good-plugins-v4l2sink.html#GstV4l2Sink--saturation" title="The “saturation” property">saturation</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a></td>
<td class="property_name"><a class="link" href="gst-plugins-good-plugins-v4l2sink.html#GstV4l2Sink--crop-height" title="The “crop-height” property">crop-height</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></td>
<td class="property_name"><a class="link" href="gst-plugins-good-plugins-v4l2sink.html#GstV4l2Sink--crop-left" title="The “crop-left” property">crop-left</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></td>
<td class="property_name"><a class="link" href="gst-plugins-good-plugins-v4l2sink.html#GstV4l2Sink--crop-top" title="The “crop-top” property">crop-top</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a></td>
<td class="property_name"><a class="link" href="gst-plugins-good-plugins-v4l2sink.html#GstV4l2Sink--crop-width" title="The “crop-width” property">crop-width</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><span class="type">GstV4l2IOMode</span></td>
<td class="property_name"><a class="link" href="gst-plugins-good-plugins-v4l2sink.html#GstV4l2Sink--io-mode" title="The “io-mode” property">io-mode</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><span class="type">V4L2_TV_norms</span></td>
<td class="property_name"><a class="link" href="gst-plugins-good-plugins-v4l2sink.html#GstV4l2Sink--norm" title="The “norm” property">norm</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type">
<a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstStructure.html#GstStructure-struct"><span class="type">GstStructure</span></a> *</td>
<td class="property_name"><a class="link" href="gst-plugins-good-plugins-v4l2sink.html#GstV4l2Sink--extra-controls" title="The “extra-controls” property">extra-controls</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a></td>
<td class="property_name"><a class="link" href="gst-plugins-good-plugins-v4l2sink.html#GstV4l2Sink--force-aspect-ratio" title="The “force-aspect-ratio” property">force-aspect-ratio</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type">
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *</td>
<td class="property_name"><a class="link" href="gst-plugins-good-plugins-v4l2sink.html#GstV4l2Sink--pixel-aspect-ratio" title="The “pixel-aspect-ratio” property">pixel-aspect-ratio</a></td>
<td class="property_flags">Read / Write</td>
</tr>
</tbody>
</table></div>
</div>
<a name="GstV4l2Sink"></a><div class="refsect1">
<a name="gst-plugins-good-plugins-v4l2sink.other"></a><h2>Types and Values</h2>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="name">
<col class="description">
</colgroup>
<tbody><tr>
<td class="datatype_keyword">struct</td>
<td class="function_name"><a class="link" href="gst-plugins-good-plugins-v4l2sink.html#GstV4l2Sink-struct" title="struct GstV4l2Sink">GstV4l2Sink</a></td>
</tr></tbody>
</table></div>
</div>
<div class="refsect1">
<a name="gst-plugins-good-plugins-v4l2sink.object-hierarchy"></a><h2>Object Hierarchy</h2>
<pre class="screen">    <a href="/usr/share/gtk-doc/html/gobject/gobject-The-Base-Object-Type.html#GObject-struct">GObject</a>
    <span class="lineart">╰──</span> <a href="/usr/share/gtk-doc/html/gobject/gobject-The-Base-Object-Type.html#GInitiallyUnowned">GInitiallyUnowned</a>
        <span class="lineart">╰──</span> <a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstObject.html#GstObject-struct">GstObject</a>
            <span class="lineart">╰──</span> <a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstElement.html#GstElement-struct">GstElement</a>
                <span class="lineart">╰──</span> <a href="/usr/share/gtk-doc/html/gstreamer-libs-1.0/GstBaseSink.html#GstBaseSink-struct">GstBaseSink</a>
                    <span class="lineart">╰──</span> <a href="/usr/share/gtk-doc/html/gst-plugins-base-libs-1.0/GstVideoSink.html#GstVideoSink-struct">GstVideoSink</a>
                        <span class="lineart">╰──</span> GstV4l2Sink
</pre>
</div>
<div class="refsect1">
<a name="gst-plugins-good-plugins-v4l2sink.implemented-interfaces"></a><h2>Implemented Interfaces</h2>
<p>
GstV4l2Sink implements
 GstTuner,  <a href="/usr/share/gtk-doc/html/gst-plugins-base-libs-1.0/GstVideoOverlay.html#GstVideoOverlay-struct">GstVideoOverlay</a>,  <a href="/usr/share/gtk-doc/html/gst-plugins-base-libs-1.0/GstNavigation.html#GstNavigation-struct">GstNavigation</a>,  <a href="/usr/share/gtk-doc/html/gst-plugins-base-libs-1.0/GstColorBalance.html#GstColorBalance-struct">GstColorBalance</a> and  <a href="/usr/share/gtk-doc/html/gst-plugins-base-libs-1.0/GstVideoOrientation.html#GstVideoOrientation-struct">GstVideoOrientation</a>.</p>
</div>
<div class="refsect1">
<a name="gst-plugins-good-plugins-v4l2sink.description"></a><h2>Description</h2>
<p>v4l2sink can be used to display video to v4l2 devices (screen overlays
provided by the graphics hardware, tv-out, etc)</p>
<div class="refsect2">
<a name="id-1.2.262.8.3"></a><h3>Example launch lines</h3>
<div class="informalexample">
  <table class="listing_frame" border="0" cellpadding="0" cellspacing="0">
    <tbody>
      <tr>
        <td class="listing_lines" align="right"><pre>1</pre></td>
        <td class="listing_code"><pre class="programlisting">gst<span class="gtkdoc opt">-</span>launch<span class="gtkdoc opt">-</span><span class="number">1.0</span> videotestsrc <span class="gtkdoc opt">!</span> v4l2sink device<span class="gtkdoc opt">=/</span>dev<span class="gtkdoc opt">/</span>video1</pre></td>
      </tr>
    </tbody>
  </table>
</div>
 This pipeline displays a test pattern on /dev/video1
<div class="informalexample">
  <table class="listing_frame" border="0" cellpadding="0" cellspacing="0">
    <tbody>
      <tr>
        <td class="listing_lines" align="right"><pre>1</pre></td>
        <td class="listing_code"><pre class="programlisting">gst<span class="gtkdoc opt">-</span>launch<span class="gtkdoc opt">-</span><span class="number">1.0</span> <span class="gtkdoc opt">-</span>v videotestsrc <span class="gtkdoc opt">!</span> navigationtest <span class="gtkdoc opt">!</span> v4l2sink</pre></td>
      </tr>
    </tbody>
  </table>
</div>
 A pipeline to test navigation events.
While moving the mouse pointer over the test signal you will see a black box
following the mouse pointer. If you press the mouse button somewhere on the
video and release it somewhere else a green box will appear where you pressed
the button and a red one where you released it. (The navigationtest element
is part of gst-plugins-good.) You can observe here that even if the images
are scaled through hardware the pointer coordinates are converted back to the
original video frame geometry so that the box can be drawn to the correct
position. This also handles borders correctly, limiting coordinates to the
image area
</div>
<div class="refsynopsisdiv">
<h2>Synopsis</h2>
<div class="refsect2">
<a name="id-1.2.262.8.4.1"></a><h3>Element Information</h3>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term">plugin</span></p></td>
<td>
            <a class="link" href="gst-plugins-good-plugins-plugin-video4linux2.html#plugin-video4linux2">video4linux2</a>
          </td>
</tr>
<tr>
<td><p><span class="term">author</span></p></td>
<td>Rob Clark &lt;rob@ti.com&gt;,</td>
</tr>
<tr>
<td><p><span class="term">class</span></p></td>
<td>Sink/Video</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="id-1.2.262.8.4.2"></a><h3>Element Pads</h3>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term">name</span></p></td>
<td>sink</td>
</tr>
<tr>
<td><p><span class="term">direction</span></p></td>
<td>sink</td>
</tr>
<tr>
<td><p><span class="term">presence</span></p></td>
<td>always</td>
</tr>
<tr>
<td><p><span class="term">details</span></p></td>
<td>image/jpeg</td>
</tr>
<tr>
<td><p><span class="term"></span></p></td>
<td> video/mpeg, mpegversion=(int)4, systemstream=(boolean)false</td>
</tr>
<tr>
<td><p><span class="term"></span></p></td>
<td> video/mpeg, mpegversion=(int){ 1, 2 }</td>
</tr>
<tr>
<td><p><span class="term"></span></p></td>
<td> video/mpegts, systemstream=(boolean)true</td>
</tr>
<tr>
<td><p><span class="term"></span></p></td>
<td> video/x-bayer, format=(string){ bggr, gbrg, grbg, rggb }, width=(int)[ 1, 32768 ], height=(int)[ 1, 32768 ], framerate=(fraction)[ 0/1, 2147483647/1 ]</td>
</tr>
<tr>
<td><p><span class="term"></span></p></td>
<td> video/x-dv, systemstream=(boolean)true</td>
</tr>
<tr>
<td><p><span class="term"></span></p></td>
<td> video/x-fwht</td>
</tr>
<tr>
<td><p><span class="term"></span></p></td>
<td> video/x-h263, variant=(string)itu</td>
</tr>
<tr>
<td><p><span class="term"></span></p></td>
<td> video/x-h264, stream-format=(string){ byte-stream, avc }, alignment=(string)au</td>
</tr>
<tr>
<td><p><span class="term"></span></p></td>
<td> video/x-h265, stream-format=(string)byte-stream, alignment=(string)au</td>
</tr>
<tr>
<td><p><span class="term"></span></p></td>
<td> video/x-pwc1, width=(int)[ 1, 32768 ], height=(int)[ 1, 32768 ], framerate=(fraction)[ 0/1, 2147483647/1 ]</td>
</tr>
<tr>
<td><p><span class="term"></span></p></td>
<td> video/x-pwc2, width=(int)[ 1, 32768 ], height=(int)[ 1, 32768 ], framerate=(fraction)[ 0/1, 2147483647/1 ]</td>
</tr>
<tr>
<td><p><span class="term"></span></p></td>
<td> video/x-raw, format=(string){ RGB16, BGR, RGB, GRAY8, GRAY16_LE, GRAY16_BE, YVU9, YV12, YUY2, YVYU, UYVY, Y42B, Y41B, YUV9, NV12_64Z32, NV24, NV61, NV16, NV21, NV12, I420, BGRA, BGRx, ARGB, xRGB, BGR15, RGB15 }, width=(int)[ 1, 32768 ], height=(int)[ 1, 32768 ], framerate=(fraction)[ 0/1, 2147483647/1 ]</td>
</tr>
<tr>
<td><p><span class="term"></span></p></td>
<td> video/x-sonix, width=(int)[ 1, 32768 ], height=(int)[ 1, 32768 ], framerate=(fraction)[ 0/1, 2147483647/1 ]</td>
</tr>
<tr>
<td><p><span class="term"></span></p></td>
<td> video/x-vp8</td>
</tr>
<tr>
<td><p><span class="term"></span></p></td>
<td> video/x-vp9</td>
</tr>
<tr>
<td><p><span class="term"></span></p></td>
<td> video/x-wmv, wmvversion=(int)3, format=(string)WVC1</td>
</tr>
</tbody>
</table></div>
</div>
</div>
</div>
<div class="refsect1">
<a name="gst-plugins-good-plugins-v4l2sink.functions_details"></a><h2>Functions</h2>
<p></p>
</div>
<div class="refsect1">
<a name="gst-plugins-good-plugins-v4l2sink.other_details"></a><h2>Types and Values</h2>
<div class="refsect2">
<a name="GstV4l2Sink-struct"></a><h3>struct GstV4l2Sink</h3>
<pre class="programlisting">struct GstV4l2Sink;</pre>
</div>
</div>
<div class="refsect1">
<a name="gst-plugins-good-plugins-v4l2sink.property-details"></a><h2>Property Details</h2>
<div class="refsect2">
<a name="GstV4l2Sink--device"></a><h3>The <code class="literal">“device”</code> property</h3>
<pre class="programlisting">  “device”                   <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *</pre>
<p>Device location.</p>
<p>Flags: Read / Write</p>
<p>Default value: "/dev/video1"</p>
</div>
<hr>
<div class="refsect2">
<a name="GstV4l2Sink--device-fd"></a><h3>The <code class="literal">“device-fd”</code> property</h3>
<pre class="programlisting">  “device-fd”                <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></pre>
<p>File descriptor of the device.</p>
<p>Flags: Read</p>
<p>Allowed values: &gt;= G_MAXULONG</p>
<p>Default value: -1</p>
</div>
<hr>
<div class="refsect2">
<a name="GstV4l2Sink--device-name"></a><h3>The <code class="literal">“device-name”</code> property</h3>
<pre class="programlisting">  “device-name”              <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *</pre>
<p>Name of the device.</p>
<p>Flags: Read</p>
<p>Default value: NULL</p>
</div>
<hr>
<div class="refsect2">
<a name="GstV4l2Sink--flags"></a><h3>The <code class="literal">“flags”</code> property</h3>
<pre class="programlisting">  “flags”                    <span class="type">GstV4l2DeviceTypeFlags</span></pre>
<p>Device type flags.</p>
<p>Flags: Read</p>
</div>
<hr>
<div class="refsect2">
<a name="GstV4l2Sink--overlay-height"></a><h3>The <code class="literal">“overlay-height”</code> property</h3>
<pre class="programlisting">  “overlay-height”           <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a></pre>
<p>The height of the video overlay; default is equal to negotiated image height.</p>
<p>Flags: Read / Write</p>
<p>Default value: 0</p>
</div>
<hr>
<div class="refsect2">
<a name="GstV4l2Sink--overlay-left"></a><h3>The <code class="literal">“overlay-left”</code> property</h3>
<pre class="programlisting">  “overlay-left”             <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></pre>
<p>The leftmost (x) coordinate of the video overlay; top left corner of screen is 0,0.</p>
<p>Flags: Read / Write</p>
<p>Default value: 0</p>
</div>
<hr>
<div class="refsect2">
<a name="GstV4l2Sink--overlay-top"></a><h3>The <code class="literal">“overlay-top”</code> property</h3>
<pre class="programlisting">  “overlay-top”              <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></pre>
<p>The topmost (y) coordinate of the video overlay; top left corner of screen is 0,0.</p>
<p>Flags: Read / Write</p>
<p>Default value: 0</p>
</div>
<hr>
<div class="refsect2">
<a name="GstV4l2Sink--overlay-width"></a><h3>The <code class="literal">“overlay-width”</code> property</h3>
<pre class="programlisting">  “overlay-width”            <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a></pre>
<p>The width of the video overlay; default is equal to negotiated image width.</p>
<p>Flags: Read / Write</p>
<p>Default value: 0</p>
</div>
<hr>
<div class="refsect2">
<a name="GstV4l2Sink--brightness"></a><h3>The <code class="literal">“brightness”</code> property</h3>
<pre class="programlisting">  “brightness”               <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></pre>
<p>Picture brightness, or more precisely, the black level.</p>
<p>Flags: Read / Write</p>
<p>Default value: 0</p>
</div>
<hr>
<div class="refsect2">
<a name="GstV4l2Sink--contrast"></a><h3>The <code class="literal">“contrast”</code> property</h3>
<pre class="programlisting">  “contrast”                 <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></pre>
<p>Picture contrast or luma gain.</p>
<p>Flags: Read / Write</p>
<p>Default value: 0</p>
</div>
<hr>
<div class="refsect2">
<a name="GstV4l2Sink--hue"></a><h3>The <code class="literal">“hue”</code> property</h3>
<pre class="programlisting">  “hue”                      <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></pre>
<p>Hue or color balance.</p>
<p>Flags: Read / Write</p>
<p>Default value: 0</p>
</div>
<hr>
<div class="refsect2">
<a name="GstV4l2Sink--saturation"></a><h3>The <code class="literal">“saturation”</code> property</h3>
<pre class="programlisting">  “saturation”               <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></pre>
<p>Picture color saturation or chroma gain.</p>
<p>Flags: Read / Write</p>
<p>Default value: 0</p>
</div>
<hr>
<div class="refsect2">
<a name="GstV4l2Sink--crop-height"></a><h3>The <code class="literal">“crop-height”</code> property</h3>
<pre class="programlisting">  “crop-height”              <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a></pre>
<p>The height of the video crop; default is equal to negotiated image height.</p>
<p>Flags: Read / Write</p>
<p>Default value: 0</p>
</div>
<hr>
<div class="refsect2">
<a name="GstV4l2Sink--crop-left"></a><h3>The <code class="literal">“crop-left”</code> property</h3>
<pre class="programlisting">  “crop-left”                <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></pre>
<p>The leftmost (x) coordinate of the video crop; top left corner of image is 0,0.</p>
<p>Flags: Read / Write</p>
<p>Default value: 0</p>
</div>
<hr>
<div class="refsect2">
<a name="GstV4l2Sink--crop-top"></a><h3>The <code class="literal">“crop-top”</code> property</h3>
<pre class="programlisting">  “crop-top”                 <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></pre>
<p>The topmost (y) coordinate of the video crop; top left corner of image is 0,0.</p>
<p>Flags: Read / Write</p>
<p>Default value: 0</p>
</div>
<hr>
<div class="refsect2">
<a name="GstV4l2Sink--crop-width"></a><h3>The <code class="literal">“crop-width”</code> property</h3>
<pre class="programlisting">  “crop-width”               <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a></pre>
<p>The width of the video crop; default is equal to negotiated image width.</p>
<p>Flags: Read / Write</p>
<p>Default value: 0</p>
</div>
<hr>
<div class="refsect2">
<a name="GstV4l2Sink--io-mode"></a><h3>The <code class="literal">“io-mode”</code> property</h3>
<pre class="programlisting">  “io-mode”                  <span class="type">GstV4l2IOMode</span></pre>
<p>I/O mode.</p>
<p>Flags: Read / Write</p>
<p>Default value: GST_V4L2_IO_AUTO</p>
</div>
<hr>
<div class="refsect2">
<a name="GstV4l2Sink--norm"></a><h3>The <code class="literal">“norm”</code> property</h3>
<pre class="programlisting">  “norm”                     <span class="type">V4L2_TV_norms</span></pre>
<p>video standard.</p>
<p>Flags: Read / Write</p>
<p>Default value: none</p>
</div>
<hr>
<div class="refsect2">
<a name="GstV4l2Sink--extra-controls"></a><h3>The <code class="literal">“extra-controls”</code> property</h3>
<pre class="programlisting">  “extra-controls”           <a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstStructure.html#GstStructure-struct"><span class="type">GstStructure</span></a> *</pre>
<p>Extra v4l2 controls (CIDs) for the device.</p>
<p>Flags: Read / Write</p>
</div>
<hr>
<div class="refsect2">
<a name="GstV4l2Sink--force-aspect-ratio"></a><h3>The <code class="literal">“force-aspect-ratio”</code> property</h3>
<pre class="programlisting">  “force-aspect-ratio”       <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a></pre>
<p>When enabled, the pixel aspect ratio will be enforced.</p>
<p>Flags: Read / Write</p>
<p>Default value: TRUE</p>
</div>
<hr>
<div class="refsect2">
<a name="GstV4l2Sink--pixel-aspect-ratio"></a><h3>The <code class="literal">“pixel-aspect-ratio”</code> property</h3>
<pre class="programlisting">  “pixel-aspect-ratio”       <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *</pre>
<p>Overwrite the pixel aspect ratio of the device.</p>
<p>Flags: Read / Write</p>
<p>Default value: "1/1"</p>
</div>
</div>
</div>
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